E1 12-Port Access Multiplexor Module
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1. periodo de tiempo 17 Cuidado debe ser tomado de tal manera que objectos liquidos no sean derramados sobre la cubierta u orificios de ventilaci n 18 Servicio por personal calificado deber ser provisto cuando A El cable de poder o el contacto ha sido da ado u B Objectos han ca do o l quido ha sido derramado dentro del aparato o C El aparato ha sido expuesto a la lluvia o D El aparato parece no operar normalmente o muestra un cambio en su desempe o o E El aparato ha sido tirado o su cubierta ha sido da ada El 12 PORT ACCESS MULTIPLEXOR MODULE TRADEMARKS USED IN THIS MANUAL Any trademarks mentioned in this manual are acknowledged to be the property of the trademark owners CHAPTER 1 Introduction 1 Introduction The El 12 Port Access Multiplexor Module is a 12 port module for use with the 2 x 12 or 1 x 4 slot DSLAM Chassis The module attaches to each Multiplexor Uplink Module MUM via a 10 100 Mbps Ethernet connection on the backplane Each El port translates the outgoing Ethernet frame to El via media conversion This is a Layer 1 conversion where the native frames are then passed across the El link over a copper pair to an El Subscriber Unit Received WAN frames are converted back to Ethernet and forwarded to the appropriate backplane port No routing or translational bridging is done internally The connection across the El line may be a fractional or full El Speed is hardware or software2. V BL ACK BOX LRA1209C E1 12 Port Access Multiplexor Module El r Acces multiplex CUSTOMER Order toll free in the U S Call 877 877 BBOX outside U S call 724 746 5500 SUPPORT FREE technical support 24 hours a day 7 days a week Call 724 746 5500 or fax 724 746 0746 INFORMATION Mailing address Black Box Corporation 1000 Park Drive Lawrence PA 15055 1018 Web site www blackbox com E mail info blackbox com FCC INFORMATION FEDERAL COMMUNICATIONS COMMISSION AND INDUSTRY CANADA RADIO FREQUENCY INTERFERENCE STATEMENTS This equipment generates uses and can radiate radio frequency energy and if not installed and used properly that is in strict accordance with the manufacturer s instructions may cause interference to radio communication It has been tested and found to comply with the limits for a Class A computing device in accordance with the specifications in Subpart J of Part 15 of FCC rules which are designed to provide reasonable protection against such interference when the equipment is operated in a commercial environment Operation of this equipment in a residential area is likely to cause interference in which case the user at his own expense will be required to take whatever measures may be necessary to correct the interference Changes or modifications not expressly approved by the party responsible for compliance could void the user s a
3. atures these status LEDs for at a glance monitoring e PWR Steady green indicates normal operation e LK Pulsing green once per second indicates El connection is operational and the unit is receiving either valid data packets or status packets from the remote unit on the other side of the El connection Solid green indicates link frame synchronization but no traffic is being received No green indicates red alarm carrier failure alarm e RX Flashing amber indicates data received from the El line e TX Flashing amber indicates data transmit to the T1 line e AL Solid amber indicates AIS alarm indication signal lt BLACK BOX O Copyright 2001 Black Box Corporation All rights reserved 1000 Park Drive Lawrence PA 15055 1018 724 746 5500 e Fax 724 746 0746
4. ed settings Switch One Switch Two Timeslots Bandwidth ON OFF ON OFF ON ON 1 31 1 24 1 16 1 8 1 984 Mbps 1 536 Mbps 1 024 Mbps 512 kbps CHAPTER 2 Installation A third lower switch bank selects the following see Table 3 for all of the El lines Table 3 El line settings Switch ON OFF 1 Framing E1 CRC E1 no CRC 2 Line Coding HDB3 AMI 3 Not Used 4 Not Used 5 Timing Local Loop 6 Not Used The El 12 Port Access Multiplexor Module ships with all switches in the ON position meaning each port will run at 1 984 Mbps El CRC Framing HDB3 Line Coding and Local Timing by default NOTE Speed settings made via the Web Management System override the hardware settings El 12 PORT ACCESS MULTIPLEXOR MODULE 2 2 Port Pinout Table 4 lists the pinout for the El RJ 21 connector Table 4 El RJ 21 connector pinout Port Pin Pin 1 26 RxT 39 1 RxR 14 TxR 2 27 RxT 40 2 RxR 15 TxR 3 28 RxT 41 3 RxR 16 TxR 4 29 RxT 42 4 RxR 17 TxR 5 30 RxT 43 TXT 5 RxR 18 TxR 6 31 RxT 44 TxT 6 RxR 19 TxR 7 32 RxT 45 TXT T RxR 20 TXR 8 33 RxT 46 TXT 8 RxR 21 TxR 9 34 RxT 47 TxT 9 RxR 22 TxR 10 35 RxT 48 TXT 10 RxR 23 TxR 11 36 RxT 49 11 RxR 24 TxR 12 37 RxT 50 12 RxR 25 TxR CHAPTER 2 Installation 2 3 LED Indicators Each El port fe
5. rito en las instrucciones de operaci n Todo otro servicio deber ser referido a personal de servicio calificado 9 El aparato el ctrico debe ser situado de tal manera que su posici n no interfiera su uso La colocaci n del aparato el ctrico sobre una cama sof alfombra o superficie similar puede bloquea la ventilaci n no se debe colocar en libreros o gabinetes que impidan el flujo de aire por los orificios de ventilaci n 10 El equipo el ctrico deber ser situado fuera del alcance de fuentes de calor como radiadores registros de calor estufas u otros aparatos incluyendo amplificadores que producen calor 11 El aparato el ctrico deber ser connectado a una fuente de poder s lo del tipo descrito en el instructivo de operaci n o como se indique en el aparato NOM STATEMENT 12 Precauci n debe ser tomada de tal manera que la tierra fisica y la polarizaci n del equipo no sea eliminada 13 Los cables de la fuente de poder deben ser guiados de tal manera que no sean pisados ni pellizcados por objetos colocados sobre o contra ellos poniendo particular atenci n a los contactos y recept culos donde salen del aparato 14 El equipo el ctrico debe ser limpiado nicamente de acuerdo a las recomendaciones del fabricante 15 En caso de existir una antena externa deber ser localizada lejos de las lineas de energia 16 El cable de corriente deber ser desconectado del cuando el equipo no sea usado por un largo
6. selectable per port software overrides hardware settings and determined by the El 12 Port Access Multiplexor Module Eight speed bandwidth settings are possible 256 512 768 1024 1280 1536 1792 and 1984 kbps The remote Subscriber Unit will determine its line speed through communication with the 12 Port Module El technology is intended for use from the telephone company central office across the local loop to the home or business or may also be used to transport data between locations over El lines E1 12 PORT ACCESS MULTIPLEXOR MODULE 2 Installation 2 1 Bandwidth Selection The El 12 Port Access Multiplexor Module provides 8 bandwidth options for the El link as mentioned in Chapter 1 Two switch banks 12 switches per bank located on the circuit board are used to select the default bandwidth The switches affect the operation of the El connection only These switches are paired in groups of two with each group affecting a single El port Table 1 depicts switch port associations Table 1 Switch port associations Upper Switch Bank Switches Middle Switch Bank Switches 2 Port 1 1 2 Port 7 6 Port 2 3 4 Port 8 12 Port 3 5 6 Port 9 20 Port 4 7 8 Port 10 30 Port 5 9 10 Port 11 42 Port 6 11 12 Port 12 Table 2 shows the switch settings used to determine the default speed setting per port When operating a port as a Fractional El line the equipment requires contiguous timeslots as indicated Table 2 Default spe
7. uthority to operate the equipment This digital apparatus does not exceed the Class A limits for radio noise emission from digital apparatus set out in the Radio Interference Regulation of Industry Canada Le pr sent appareil num rique n met pas de bruits radio lectriques d passant les limites applicables aux appareils num riques de la classe A prescrites dans le Reglement sur le brouillage radio lectrique publi par Industrie Canada El 12 PORT ACCESS MULTIPLEXOR MODULE NORMAS OFICIALES MEXICANAS NOM ELECTRICAL SAFETY STATEMENT INSTRUCCIONES DE SEGURIDAD 1 Todas las instrucciones de seguridad y operaci n deber n ser le das antes de que el aparato el ctrico sea operado 2 Las instrucciones de seguridad y operaci n deber n ser guardadas para referencia futura 3 Todas las advertencias en el aparato el ctrico y en sus instrucciones de operaci n deben ser respetadas 4 Todas las instrucciones de operaci n y uso deben ser seguidas 5 El aparato el ctrico no deber ser usado cerca del agua por ejemplo cerca de la tina de ba o lavabo s tano mojado o cerca de una alberca etc 6 El aparato el ctrico debe ser usado nicamente con carritos o pedestales que sean recomendados por el fabricante 7 El aparato el ctrico debe ser montado a la pared o al techo s lo como sea recomendado por el fabricante 8 Servicio El usuario no debe intentar dar servicio al equipo el ctrico m s all a lo desc
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